I’ll write a TLDR because I was asking questions on this topic, maybe it’ll help someone maybe not.
so finally I came to a decision. I got the ifi BL (here on the forum) because at the end of the day I use it mostly when I'm in bed, to listen to music or watch movies when it's very late, so the neighbours don’t start shouting and hitting the wall lol (it’s weird that the walls are so thin).
Frequently I share with my wife and plug a Y cable so we can both listen to the same stuff.
Compared to the odac/o2 or the on-board dac it’s clearly a step up in quality.
The elears are easy to drive, people shouldn’t worry about that, I can drive them with my phone just fine. The quality of the sound scales up really well though, I can tell the difference (or I think I do)
First impressions on the ifi micro iDSD black label: I could kill someone with it and won’t break, super solid. Has like 1000 features but if you don’t want to bother and use it as plug/play device is also ok.
It’s nice to have some options. This is how I see them (just my opinion of course, not facts lol)
* The bass boost is really not needed with the elears but I turn it on to watch movies or to listen to gojira lol. Increases the impact of the bass but also adds just a touch of boominess. Overall useful.
* The 3D setting, I find it terrible, unusable.
* Pre out is a nice option, maybe I’ll upgrade just the amp some day and use it as dac. Useful.
* Power mode, useful. I find it sounds fuller when I use it in normal mode compared to eco mode, not sure why .
* Polarity, can’t tell the difference. With speakers, guitar’s mics (like brian may’s guitar) makes sense making them out of phase, sounds different, but reversing the polarity of the whole thing does nothing to the sound from what I can tell. My understanding on this topic is limited. Not useful.
* IEmatch, useful of course.
* Smart power, useful. Maybe not use it as the default battery pack but I can see myself using it when traveling of something